题目内容

5．      is known to all，the earth moves around the sun．（　　）
A．ItB．WhatC．WhichD．As

分析 众所周知，地球围绕太阳转．

解答 答案：D．
分析句子结构以及主句前面的逗号可知，___ is known to all是非限制性定语从句，故排除A、B；which引导的非限制性定语从句不可以位于句首，故排除C，as is known to all是固定搭配，"众所周知"，所以选D．

点评 本题考查定语从句．做这类题型时，首先要判断从句是否是定语从句；然后分析从句的句子成分，缺主语、表语、宾语、定语用关系代词，缺状语时用关系副词；最后看先行词，根据句意，得出答案．

练习册系列答案
相关题目
18．Almost a decade after the hit Finding Nemo made clownfish seem totally warm and lovable，environmentalists are now looking for a real-life sequel：Saving Nemo．
    In the United States，a request has been made to extend the protections of the Endangered Species Act to marine species including the clownfish．
But before you start shedding tears for Nemo and his buddies，keep in mind that this request is not based on any evidence of a decline in the clownfish population．Instead，what has sparked concern is the worsening health of coral reefs，which more than one million aquatic species including the clownfish depend on to thrive，even survive．
    In ways it makes more sense to move to protect a species when its habitat declines rather than its actual population．The most important mission of the Endangered Species Act is the protection of species'habitats； without their habitats，there's almost no hope of saving endangered animals，except perhaps in a zoo．
　  Earlier this year，alarming news came about the world's largest coral reef system，Australia's Great Barrier Reef （GBR，大堡礁）．A study has shown the Reef is in sharp decline，with half of its coral cover gone in the past 27 years．
　   Katharina Fabricius，an Australian coral reef ecologist co-authoring the study，has been diving and working on the GBR since 1988-and has watched the decline．"There are still a lot of fish…but not the same color and diversity as in the past，"she said．
　  The study team used information from more than 2，000 surveys to determine the rate of decline between 1985 and 2012．That overall 50-percent decline，they estimate，is a yearly loss of about 3.4 percent of the Reef．If the trend continued，the coral cover could halve again by 2022．
　  Several main factors are responsible for the decline，the study found．Intense tropical cyclones （热带气旋），believed to be fueled by global warming，have caused massive damage to reefs in the central and southern parts of the Reef．Meanwhile，population explosions of the coral-consuming crown-of-thorns starfish （长棘海星） have affected coral populations along the length of the Reef．Two severe coral bleaching （变白） events，caused by ocean warming，have also had major damaging impacts in northern and central parts of the GBR．
72．A request has been made in the United States to save the clownfish becauseB
A．it is a totally warm and lovable species        
B．the health of its habitat is worsening
C．its population has dropped sharply          
D．few clownfish can be found in zoos
72．What does the underlined word"thrive"in Paragraph 3 probably mean？C
A．To feed oneself
B．To keep oneself safe．
C．To grow and develop well
D．To attract attention．
74．According to the article，what is the AUTHOR'S attitude toward the request in the U．S．？A
A．He/she supports it．
B．He/she finds it ridiculous．
C．He/she thinks it is reasonable but needs revising．
D．There's no WAY to tell．
75．According to the article，all of the following factors contribute to the decline of Great Barrier Reef's coral cover exceptA
A．the growing popularity of scuba （水肺）diving around the Reef
B．stronger tropical cyclones fueled by global warming
C．the rapidly growing population of type of coral-eating starfish
D．coral bleaching caused by rising temperature of the ocean water．
16．Peter told us the work would be finished by next month，_____ personally I doubt very much．（　　）
A．thatB．whenC．whichD．it
13．-We will take the conditions into careful consideration________ you have attached to this contract．
-Thanks．Hope for further cooperation．（　　）
A．asB．whichC．whereD．what
20．-When are you leaving for Beijing？
-My train _______at six tomorrow morning．（　　）
A．leavesB．will leaveC．would leaveD．left
10．-Della burst out crying at the news，but I meant no harm．
-I'd rather you ________ her about it．（　　）
A．didn't tellB．haven't toldC．hadn't toldD．wouldn't tell
4．In today's fast-paced society，few people take time to enjoy the midday meal．Most of us just rush right through it．We grab a quick salad，or buy a sandwich and eat at our computers，Sometimes，if there is a deadline around the comer，we just skip lunch．
The development of technology hasn't done our eating habits much good either．We are constantly distracted by e-mail，social media，and 24-hour news．Even when we do sit down for lunch，we are more connected to our hand-held electronic devices．
Long working hours can cause all kinds of health problems，and many developed countries have put in place labor laws specifically regarding the lunch break．These laws give employees the right to take a break during a long work shift，but it's up to them whether they do so or not．
Frank Partnoy，a former Wall Street trader，says that employers should encourage workers to take time off for lunch．This is because long lunch breaks can benefit both individuals and society．
Writing in The Guardian，Partnoy says that one obvious reason to take a lunch break is to slow down and gain some perspective（认识）． A break from work allows us to think strategically and outside the box．It also puts our daily tasks into a broader context（背景）．
What we eat at lunch is also important．In Partnoy's opinion，a fast food lunch is more harmful than not having lunch at all．And it's not just about calories and unhealthy food．Recent studies show that fast food also has negative effects on how we think．
However，if we sit down at a proper restaurant and chat leisurely with colleagues，we are more likely to slow down，something that hardly can be achieved in a noisy and over-packed fast food chain．
Despite these benefits，some employees might still be unwilling to take time off for lunch．Partnoy's suggestion？Make skipping lunch difficult：Employers could ask workers to fill out a form stating their reasons for skipping the meal．

36．What does the underlined phrase"skip lunch"mean in the first paragraph？A
A．don't have lunch  B．have a quick lunch
C．work while having lunch   D．take a lunch break
37．Which of the following is true according to the text？C
A．Modern technology results in good diet habits．
B．Electronic devices make our life comfortable．
C．Many people are too busy to have a good lunch．
D．Laws have passed to make workers have lunch．
38．According to Frank Partnoy，long lunch breaksA．
A．are time for the workers to relax their mind
B．make the employees work longer hours
C．are for employees to have a quick lunch
D．make the workers eat a proper lunch at home
39．In Partnoy's opinion，a fast food lunchC．
A．saves a lot of time for a rest
B．is better than having no lunch
C．affects people's way of thinking
D．makes workers sit down and think
40．What might be the author's purpose in writing the text？D
A．To warn us not to eat fast food．
B．To introduce Frank Partnoy's opinion．
C．To encourage us to work more efficiently．
D．To show the importance of a proper lunch．
1．They come from a famousCanadian（加拿大） university．
6．Eating a diet high in processed food（加工食品）increases the risk of depression，research suggests．What's more，peopie who ate plenty of vegetables，fruit and fish actually had a lower risk of depression，the University College London team found．
Data on diet among 3，500 middle-aged civil servants（公务员）were compared with their emotional state five years later，a British journal reported．They split the participants into two types of diet--those who ate a diet largely based on whole food，which inc!udes lots of fruit，vegetables and fish，and those who ate a mainly processed food diet，such as sweetened desserts，fried food，processed meat，refined grains and high fat dairy products After accounting for factors such as gender，age，education，physical activity，smoking habits and chronic（慢性的） diseases，they found a significant difference in the future depression risk with the different diets．
Those who ate the most wholefood had a 26% lower risk of future depression than those who ate the least wholefood．By contrast，people with a diet high in processed food had a 58% higher risk of depression than those who ate a diet low in processed foods．
Study author Dr．Archana SinghManoux pointed out there was a chance the finding could be explained by fl lifestyle factor they had not accounted for．
There was a paper showing a Mediterranean diet was associated with a lower risk of depression，but the problem with that is if you live in Britain，the likelihood（可能性）of you eating a Mediterranean diet is not very high．
Dr．Andrew McCulloeh，chief executive of the Mental Health Foundation，said，this study adds to an existing body of solid research that shows the strong links between what we eat and our mental health．
He added people's diets were becoming increasingly unhealthy．The UK population is consuming less nutritious，fresh produce and more saturated（含饱和脂肪酸的）fats and sugars．
61．The text is mainly aboutB．
A．the increasingly unhealthy diet of the UK population
B．the link between processed food and depression
C．the relationship between physical and mental health
D．fl healthy diet largely based on wholefood
62．What do we know about the participants？D
A．They are of different ages from young to old．
B．They have been eating fl less heal thy diet these years．
C．Most of them prefer wholefood to processed food．
D．Those who ate wholefood generally were happier in the long term．
63．What can we learn from what Dr．Archana Singh Manoux said？A
A．It is difficult for most British people to have a Mediterranean diet．
B．The Mediterranean diet is the most healthy in the world．
C．Many studies have been done on the Mediterranean diet before．
D．The Mediterranean diet is not good for depression．
64．Dr．Andrew McCulloch agrees thatA．
A．our diets are closely related to our mental health
B．the present study needs more facts and other information
C．the UK population will become ill in the near future
D．more saturated fats and sugars should be taken in
65．Why might the author have written this text？C
A．To tell people what a healthy diet actually is．
B．To prove people's diets are increasingly unhealthy．
C．To encourage people to cut down on proceased food．
D．To introduce some experts on the research team．

违法和不良信息举报电话：027-86699610 举报邮箱：58377363@163.com

精英家教网